Otros

<p>Octyl 4-nitrophenyl hexyl phosphonate is a lipase suicide inhibitor that is a chromogenic substrate for lipases which upon enzymatic action, binds irreversibly to the lipase and inactivates it. The substrate can be used for the determination of active sites in lipases, especially in lipases preferring hydrophobic leaving groups.</p>

<p>4-Nitrophenyl 4,6-O-benzylidene-3-O-(2,3,4,6-tetra-O-acetyl-b-D-glucopyranosyl)-b-D-glucopyranoside is a high purity fluorescent reagent that can be used as a substrate for many enzymes. It is also used in environmental testing and to detect the presence of nitrophenols in food. This product has CAS number 545414.</p>

<p>4-Nitrophenyl 2-O-(2,3,4,6-tetra-O-acetyl-a-D-mannopyranosyl)-a-D-mannopyranoside is a fluorogenic substrate that is used as a diagnostic tool and can be used to detect the presence of β--glucosidase in the gut. It is also used as a conjugate with enzymes such as peroxidase or alkaline phosphatase for use in enzyme catalyzed reactions. The product has been shown to be active against a variety of bacteria, including Staphylococcus aureus and Escherichia coli. This product has been shown to produce chemiluminescence when incubated with horseradish peroxidase and hydrogen peroxide. This product is light sensitive and should be stored at room temperature away from direct sunlight.</p>

<p>Aldol® 458 phosphate is a chromogenic and fluorogenic enzyme substrate used for detection of phosphatase activity. The colorless enzyme substrate is cleaved by phosphatases secreted by bacteria grown in liquid media, yielding yellow color and green fluorescence. Aldol® 458 phosphate can also be used in assays involving phosphatase-coupled antibodies in immunoassay applications (ELISA). Aldol® 458 phosphate can be used under aerobic and anaerobic conditions.</p>

<p>4-Nitrophenyl (N-acetyl-a-neuraminosyl)-(2,3)-O-b-D-galactopyranosyl-(1,3)-2-acetamido-2-deoxy-b-D-galactopyranoside is a fluorogenic substrate that is used in the detection of enzyme activity. It reacts with a specific enzyme to produce light. This product has been shown to be useful for detecting β -galactosidase, β -glucuronidase, α -mannosidase, and lactose permeases. The product is also used in the diagnosis of urinary tract infections and other diseases. This product is not intended for use in humans or animals.</p>

<p>4-Nitrophenyl 2-acetamido-2-deoxy-4-O-(a-L-fucopyranosyl)-b-D-glucopyranoside is a fluorescent substrate for beta-galactosidase that is used in diagnostics and research. The product has been shown to be an excellent substrate for beta-galactosidase and beta-glucuronidase, as well as other glycosidases. It can be used to detect the presence of these enzymes in any sample containing glycosides. This product is also used in food testing, environmental testing, and bioluminescence experiments. 4NPAFG is available in high purity with a conjugate group at the C4 position.</p>

<p>4-Nitrophenyl 2-O-(2,3,4,6-tri-O-acetyl-a-D-mannopyranosyl)-4,6-O-benzylidene-a-D-mannopyranoside is a fluorogenic substrate that is used for the detection of alpha amylase activity in food testing. It is also used as a chromogenic substrate for the detection of beta amylase activity. 4NP2ODM is a conjugate that can be used for the detection of alpha or beta amylases in environmental testing. This compound has high purity and quality and CAS No. 90105037.</p>

<p>2-Chloro-4-nitrophenyl β-D-xylopyranoside is a fluorogenic substrate that can be used for the detection of β-glucuronidase activity in food testing, environmental testing, and diagnostics. It has been shown to be an effective substrate for detecting β-glucuronidase activity with a high degree of sensitivity and specificity. 2CNPX can also be used as a chromogenic substrate for the detection of β-glucuronidase activity in food testing and environmental testing. The conjugate form of this substrate is useful for immunochemical assays, such as enzyme linked immunosorbent assay (ELISA) or radioimmunoassay (RIA). This product is also used as a ligand in fluorescence resonance energy transfer (FRET) assays.<br>2CNPX can be used to detect β-glucuronidase activity by chemiluminescence</p>

<p>4-Nitrophenyl 2-O-(a-L-fucopyranosyl)-a-D-galactopyranoside is a chromogenic pNP enzyme substrate consisting of a fucose and galactose moieties. Upon enzymatic hydrolysis by specific fucosidases or galactosidases, it releases the highly chromogenic molecule 4-nitrophenol, which exhibits a distinct yellow color that can be monitored spectrophotometrically. This substrate is frequently used to study enzyme specificity, kinetics, and inhibition, and it plays a critical role in the investigation of carbohydrate active enzymes (CAZymes), the screening of enzyme inhibitors, and the development of novel analytical methods for the detection and quantitation of enzyme activities.</p>

<p>4-Nitrophenyl b-D-glucuronide sodium salt is a high-quality chromogenic substrate specifically designed for the colorimetric detection and measurement of β-glucuronidase activity. Upon enzymatic cleavage, it releases the yellow 4-nitrophenol, enabling quantitative analysis via spectroscopy. This compound is conveniently provided as a sodium salt to ensure enhanced solubility, stability, and shelf life. It is an ideal choice for biochemical, research, and diagnostic applications requiring a reliable and efficient b-D-glucuronide substrate.</p>

<p>Aldol 457 Beta-D-galactopyranoside is a chromogenic substrate for beta-galactosidase, which is an enzyme that catalyzes the hydrolysis of the terminal galactose residue in D-galactose to form D-galactitol and D-glucose. Aldol 457 Beta-D-galactopyranoside is used as a reagent for the detection of beta-galactosidase activity in biological samples, such as cultured cells or tissues, and has been shown to be a ligand in binding studies with Galectin 1. This product is also used in diagnostic applications such as food testing, culture media, fluorogenic substrates, environmental testing and more.</p>

<p>5-Bromo-4-chloro-3-indolyl N-acetyl-a-D-neuraminic acid methyl ester is a chromogenic substrate that reacts with enzymes to produce a colored product. It can be used in diagnostic tests for the detection of various bacteria, including Salmonella and Brucella, as well as for the determination of concentration in food testing or environmental testing. 5B4C3INA can also be conjugated to other substances, such as biotin or an antibody, which allows it to be used in immunoassays.</p>

<p>4-Nitrophenyl 2,3,4-tri-O-acetyl-b-D-glucuronide methyl ester is a fluorescent substrate for the beta-glucuronidase enzyme. It can be used to detect the presence of this enzyme in bacteria and other microorganisms by means of fluorometric or colorimetric assays. It has been shown to have an excellent stability in a variety of culture media and food testing applications. This product is available in high purity and quality, with a CAS number of 18472-49-6.</p>

<p>Hexoprenaline is a stimulant of adrenergic beta 2 receptors used as a bronchodilator, antiasthmatic agent, and tocolytic agent.</p>

<p>Modified naphtol AS substrate used in histochemical and cytochemical staining</p>

<p>Substrates for endoglucanase and beta-cellobiohydrolase activity in the study of digestive system in Zygentoma as an insect model for high cellulase activity</p>

<p>Modified naphtol AS substrate used in histochemical and cytochemical staining</p>

<p>4-Nitrophenyl beta-galactoside (pNP-Gal) is a chromogenic substrate commonly used in enzymatic assays to detect and quantify the presence of beta-galactosidase. It is hydrolyzed by the enzyme to release 4-nitrophenol, which produces a yellow color that can be measured spectrophotometrically. Similarly, 4-Nitrophenyl beta-glucoside (pNP-Glc) can be used to assay beta-glucosidase activity. 4-Nitrophenyl beta-globotrioside (pNP-Glo) is a similar compound that has been designed as a substrate for glycosidases that cleave terminal beta-galactosyl-(1-&gt;3)-N-acetylgalactosamine residues. In these assays, the release of 4-nitrophenol can be measured to determine the activity of the enzyme under study. The use of chromogenic substrates like pNP-Glo allows for the rapid and reliable detection of glycosidase activity in a variety of biological samples.</p>

<p>Intermediate in the synthesis of memantine</p>

<p>4-Nitrophenyl 2-azido-2-deoxy-beta-D-galactopyranoside is a chromogenic substrate for beta-galactosidase. Upon hydrolysis, para-nitrophenol is released yielding a yellowish colour. 4-Nitrophenyl 2-azido-2-deoxy-beta-D-galactopyranoside is used in different applications such as the Bacterial enzyme assays (e.g., E. coli detection)</p>